DISCUSSION OF GENERA AND SPECIES 31 



Genus PUTO Sign. 

 Puto cupressi (Coleman). 



A native species, occurring in this area on Sequoia sempervirens 

 and Torreya californica. 



Puto ambigua (Fullaway). 



A native species, originally described from this area, where it is 

 known only from the "pickleweed," . Salicornia ambigua, in the salt 

 marshes about San Francisco Bay. 



Puto yuccae (Coq.) 



A native species which occurs quite commonly in this area on Erio- 

 phyllum confertiflorum. It has also been taken from Garrya elliptica, 

 Diplacus glutinosus and Stachys sp. 



Genus ERIUM Ckll. 

 Erium lichtensioides Ckll. 



A native species, occurring sparingly on sage brush, Artemisia cali- 

 fornica. 



Genus TRIONYMUS Berg. 

 Trionymus bromi Ferris. 



A presumably native species, originally described from this area on 

 Bromus sp. It has also been taken from Ammophila arenaria (an intro- 

 duced grass) on the sand dunes at San Francisco. 



Trionymus calif ornicus Ehrh. 



A native species which is rather common on various species of 

 Elymus. 



Trionymus distichlii Ferris. 



A native species, originally described from this area, where it is 

 known only from the salt marsh grass, Distichlis spicata, in the salt 

 marshes about San Francisco Bay and along the coast. 



Trionymus festucae (Kuwana). 



A native species, originally described from this area on Festuca sp. 

 In my paper on the California species of this group I have included with 

 this species a Trionymus that occurs on bamboo on the Stanford Campus. 

 I am now inclined to believe that the two are not identical. 



